Nut-lock washer.



No. 629,318.' Patented Aug; 1899.

l L. PYLE. l

NUT LUCK'WASHER. A

:Application med Feb. 4, 1899..)

(No Model.)

UNITED. 'STATES PATENT FFICE.

- LlZA PYLE, OF ROSS, KENTUCKY.

NUT-LOCK WASHER.

SPECIFICATION forming part' of Letters Patent No. 629,818, dated August1, 1899. Applicant ned February i, 1399. sein No. 704,580. (remodel.)

To @ZZ whom it may concern,.-

Be it known that I, LIZA'PYLE', a citizen of the United States, residingat Ross, in the county of Campbell, State of Kentucky, have invented anew and useful Nut-Lock l/Vasher, of which the following is aspecification.

My invention relates tov improvements in nut-lock washers in which thewasher consists of a combination of rubber and metal of such a form andshape that when the same are joined together the rubber is firmlyclamped within a metallic cup, thus constituting the washer, which whenput in place over the bolt is so arranged as to make it stationary withreference to the revolutions of the nut. The rubber within the metalliccup is of that size and shape that when the nut is screwed home it willhave embedded its corners in the rubber portion of the washer, so as tomake it (the nut) permanently xed in position.

, The objects of my improvement are; rst, to provide a nut-lock washerthat will make a permanent lock for all nuts whenever and wherever usedother than those used upon railjoints in railroads, and, second, toprovide such a nut-lock Washer as will notinterfere with the removal ofthe nut and at the same time operate as a perfect lock. Iattain theseobjects by the mechanism illustrated in the accompanying drawings,.inwhich- Figure l presents the front View of the Washer; Fig. 2, the frontview of the Washer with themnut screwed home, illnstratin g how thecorners of the nut embed themselves into the rubber; Fig. 3, the back ofthe washer, showing the projections and Aholes used for making'thewasher stationary about the bolt and the rear projections for holdingthe vrubber firmly in the metallic cup. Fig. 4 shows a sectional view ofthe washer in place ready to receive the nut,'also showing the manner bywhich the rubber is held tirmly in the cup. Fig. 5 shows a side view ofthe entire washer in place with the nut screwed home, illustrating theextension of the nut above the washer and the projections from the baseof the washer, by which'means it is held stationary about the bolt.

Similar letters refer to similar parts throughout the several views.

The rubber e and metallic cup G constitute the several parts of thewasher, the rubbers screwed home will embed themselves into the rubbere, as shown in Fig. 2. The metallic cup G is made of some metallicsubstance, giving it strength and durability, having through its centerahole sufficiently large to pass over the bolt C. Through the base orback of the Washer are beveled holes f, in which are inserted screws ornails, being driven into the Wood or material that the washer restsagainst for the purpose of making the washer stationary about the boltC. There extend from the back or base projections c, consisting vofsharp points to be used in sinking them into iron or other substancesthat the washer may rest against to prevent it from revolving about thebolt C, as shown K in Fig. 5. t

Around the top of the cup G are the points g, which are of less lengththan the Width of the rubber e, so that when they are bent down andsunken into the rubber e, as indicated in Figs. l, 2, and 4, the rubbere will be stationary within the cup G, and at the same time the points gwill not interfere with the cor ners of the nut d embedding themselvesinto the rubber e. In the back of the metallic cup 'G are projections h,extending upward so as to sink themselves into the' rubber e, thusgiving additional firmness to thestationary p in place over the bolt C,thepoints c or screws v through the holes f being sunken into theniaterial against which the washer rests, makes the washer stationarywith respect to the motion of the nut d, whereas the corners of the nutd when the nut is screwed home have embedded themselves into the rubbere, thus IOO making for the nut d a tight-fitting rubber jacket of theshape of the nut, as shown in Fig. 2, at the same time leaving enoughofv the nut exposed to permit the free use of the Wrench, as shown inFig. 5.

Having thus described my invention, that Which I desire to secure byLetters Patent The combination of the rubber e with the metallic cup Grheld firmly together by the points g and h, being sunken into the rubbere, the whole being so constructed that the shortest diameter of theinner circumference of the rubber e Will be equal to the shortestdiameter of the outer circumference of the nut (l, requiring the cornersof the nut d to embed themselves as the nut is being screwed home intothe rubber e, thus making the tight-fitting jacket of the rubber e aboutthe nut d, at the same time the Washer not interfering with the removalor tightening of the nut cl, the Washer having in its back the holes fthrough which screws or nails may be inserted and the points c, both oreither of which may be sunken into whatever the Washer may rest againstto prevent it from revolving about the bolt C'.

LIZA PYLE.

Witnesses:

O. W. SIMPKINsoN, MARY E. NIEMAN.

